scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/io_uring/bpf-ops.h b/io_uring/bpf-ops.h
new file mode 100644
index 000000000..0b6d78949
--- /dev/null
+++ b/io_uring/bpf-ops.h
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef IOU_BPF_OPS_H
+#define IOU_BPF_OPS_H
+
+#include <linux/io_uring_types.h>
+
+enum {
+	IOU_REGION_MEM,
+	IOU_REGION_CQ,
+	IOU_REGION_SQ,
+};
+
+struct io_uring_bpf_ops {
+	int (*loop_step)(struct iou_ctx *, struct iou_loop_params *lp);
+
+	__u32 ring_fd;
+	void *priv;
+};
+
+#ifdef CONFIG_IO_URING_BPF_OPS
+void io_unregister_bpf_ops(struct io_ring_ctx *ctx);
+#else
+static inline void io_unregister_bpf_ops(struct io_ring_ctx *ctx)
+{
+}
+#endif
+
+#endif /* IOU_BPF_OPS_H */